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Deryk, I have humped that same hook and chain for Captain Janet. I use the Odins for that job. When you have 5 minutes (or less) to get in, down, and working with 300 feet of anchor rode and a 44-ton boat on the other end, you just want the reg to deliver. At last count I think i got about 8 of those puppies, they suck bigtime in expense for parts, and as Janet says, they are finicky, but they do perform in any position. ANother great reg i use that delivers is the Scuba Pro MK20 1st Stage with DSI SuperFlow 2nd Stage - The DSI http://www.DivingSystemsInternational.com adjustable 2nd stage is a high end commercial reg that just delivers under the most demanding situations in a traditioanl style box. If you are looking for a good high end reg and those two dont suit you -- try a Scuba Pro MK20 / G250 or G500 ---- both excellent units Good Luck Joel Silverstein http://www.nitroxdiver.com At 10:16 PM 2/22/1999 EST, Wahoojan@ao*.co* wrote: >Deryk, > i suppose divers use them because they see dive boat crews use them . > >We ( my crew and i) use posiden regulators because during working dives a >finely tuned posiden is the only regulator that has proven able to supply >extremely high volumes of gas at a low amount of inhalation and exhalation >resistance at depth . >every other kind of supposedly deep diving regulator gets overbreathed , >causes a co2 build up , you have to stop work and rest before you can resume >work. > >Now please note i am not talking about ordinary sport diving but the all-out >, full-bore exertion required to swim a thirty pound grapple and thirty feet >of 1/2 inch chain attached to 3/4 inch nylon anchorline sixty or eighty >feet up the side of a wreck in 130 to 270 feet of cold , dark water, in a >current and secure it to a sturdy portion of the wreck with a big one inch >crosby shackle. while burdened with back gas , stage bottles and tools. We >need to get the job done quickly , efficiently and do not want to fiddle >around with lift bags , stopping to rest , or any other delays and can not >spare a big team off the deck and into the water. everyone in the crew are >powerfull swimmers and such exertion needs a lot of gas to flush away co2 .. I >have used mine commercial diving even wrestling with 10 ton lift bags >under a frozen river. >Posiden regulators are expensive , expensive to maintain , tolerate no abuse , >have no tolerance for dirt in the second stage , the large exhaust diaphram >is easily hung open by debris and the regulator should be washed while still >pressurized on your tanks, so wash water dosn't run back up into the second >stage mechanism , they have a high intermediate pressure compared to other >regulators which is hard on the hoses , and only posiden hoses fit , only >posiden mouth pieces fit , and parts are expensive and a poorly maintained >unit will dump your gas at a spectacular amazing rate, and i have recently >discovered they free flow briskly when hit by the prop wash from a scooter :) >.. i have never had one in 22 years fail closed , any problems i have had have >been a spectacular run-away free flow, (which motivates you to be able to >reach your manifold valves) but that dose not mean it won't happen tomorrow , >that is why i dive with two . >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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